第二部分：英语知识运用（共两节，满分35分）
第一节：语法和词汇知识（共15 小题；每小题1分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
21．My neighbor asked me to go for ______ walk， but I don’t think I’ve got ______ energy.
A．a; 不填 B．the; the C．不填；the D．a; the
22．Collecting stamps as a hobby___________ increasingly popular during the past fifty years.
A．becomes B．became C．has become D．had become
